Description
OurÿPressure Relief Piston Valve kit, is a complete bolt-on kit. The Valve works perfectly without triggering any check engine light in the dashboard. The Piston type valve is engineered to remedy the issues experienced with the factory valves when their diaphragm raptures or when their piston breaks, which results in boost leaks and premature wear of the turbocharger.
Our valve is designed to work a lifetime without fail because it is serviceable.
Specifications:
- CNC Billet Alloy
-
High Temp Viton O-rings
- Smaller Vacuum space than any other valve in the market
- Fast Piston Opening
- Better Throttle Response
- No Boost Leak
- Serviceable
The Kit includes:
- Relief Valve
- Boost Tap/Vacuum Adapter
- Electric Solenoid
- Solenoid Bracket
- VacuumHose
- Zip Ties
- Inox Clamps
- Screws
What is the purpose of a relief valve?
Is the relief valve of the RTMG turbocharger better than the factory electric one?
Although the relief valve may seem like a simple component, it has many roles in turbocharged engines. The new-generation blow-off valves use the carƒ??s electrical system to open and close the valve as needed, controlled by the engineƒ??s ECU. The primary role of the valve is to protect the turbocharger by releasing compressed air when the driver lets off the gas pedal, preventing the air from flowing back into the turbocharger.
A few words about the turbocharger...
The turbocharger consists of two separate turbine wheels. One is driven by the exhaust gases from the engineƒ??s exhaust manifold, which in turn spins the compressor wheel via a shaft. This compressor wheel compresses atmospheric air, increasing its pressure and feeding it into the engine. However, in factory cars, the pressure levels are quite low, so the valve doesnƒ??t need to work as hard. When an engine is modified for more power, the turboƒ??s pressure can sometimes increase to more than twice its original level, e.g., from 0.5 to 1.5 bar. This is where issues with the factory electric valve start to arise.
The problem with the factory valve is that it opens and closes using an electric solenoid, which has a fixed force output. In other words, the solenoid that closes the air escape port in factory conditions (e.g., at 0.5 bar) does not increase its strength when a modified engine operates at 1.5 bar. As a result, air escapes through the factory blow-off valve, leading to horsepower loss, even with a basic stage one tune.
With the factory valve, there are several disadvantages. First, you cannot achieve the optimal performance from the engine tuning you desire. More critically, the air escape forces the turbocharger to over-rev in order to reach the desired boost level, putting strain on the turboƒ??s bearings and raising temperatures, which can lead to timing retardation and shorten the turboƒ??s lifespan.
In manual transmission cars used for sport, the blow-off valve has an additional role. Every time the driver shifts gears, releasing and pressing the throttle, the valve must relieve the air system efficiently to prevent the turbo from losing speed, which would cause turbo lag. How does the turbo lose speed? When the driver lets off the gas and presses the clutch to shift, the exhaust gas production stops, so the turbo loses kinetic energy from the exhaust. More importantly, the compressed air in the pipes, with nowhere to go because the throttle is closed, flows back into the turbo. This air slows down the turbo, causing its RPM to drop, a disadvantage known as "turbo lag"ƒ??the time it takes for the turbo to regain its RPM and boost pressure when the driver steps on the throttle again. For example, if it takes 0.5 seconds to regain boost across four gear shifts, the car will lose 2 seconds in total acceleration time.
Another significant disadvantage, if the blow-off valve is not properly synchronized or absent, is the axial stress on the turboƒ??s support bearings. This happens because the sudden deceleration of the turbo when the gas pedal is released puts reverse stress on the bearings, again shortening the turboƒ??s lifespan.
Conclusion
The faster and more efficiently the turboƒ??s air system is relieved when the throttle is released, the more time is saved, leading to better acceleration during gear shifts while also prolonging the turboƒ??s life.
The RTMG PERFORMANCE Blow-off Valve
Designed to operate mechanically using boost pressure rather than electricity, the RTMG valve has the advantage of functioning at all pressure levels without losing any air. How does this happen? it's all about physics. We use a piston that has a larger diameter on the pressurized side (the driving side) than the air escape port of the turbocharger. This means that the sealing surface of the piston is larger than the force trying to open it. The higher the turbo boost pressure, the greater the pressure on the piston, achieving a perfect seal without leaks at all boost levels. Pressure times surface area... physics wins.
Another advantage of the RTMG PERFORMANCE blow-off valve is that it retains the ECU's command via an electrovalve included in the kit, so it functions like a factory part without triggering a check engine light or any malfunctions. Open-type blow-off valves vent compressed air to the environment, while closed-type valves release the air back into the turbo intake, producing a sportier sound for tuning enthusiasts. Our blow-off valve is made from aircraft-grade aluminum, capable of withstanding forces ten times greater than the usual stress, ensuring reliable performance.
The valve's design is unique, with a closed-circuit construction at stress points, eliminating any potential for air leakage. The O-rings are made from Viton, which can withstand much higher temperatures from the engine, and all the vacuum pressure hoses are made of silicone. The control valve used for the blow-off valve is made by Pierburg, a top-quality manufacturer in the industry. To protect against corrosion, we use a durable anodized coating, available in various colors, which adds both hardness and a shiny finish to the valve.
Our blow-off valve upgrade kit includes everything necessary for installation and is ready to useƒ??nothing more is required. Professional installation is recommended to ensure optimal product performance, as incorrect installation could lead to malfunction.
Welcome to our team!
Warranty
Our warranty terms are based on each manufacturer’s guidelines. Depending on the specific manufacturer, customers may be eligible to process warranty claims either directly with the manufacturer or through us. For detailed information or assistance with warranty inquiries, please contact our support team.
Shipping & Returns
Shipping time will be provided once your order has been processed. Please note that shipping options cannot be changed after your order has been placed.
For returns, kindly contact our support team for guidance. We'll walk you through the process and ensure everything goes smoothly.
Frequently Asked Questions
OEM (Original Equipment Manufacturer) parts are made by the vehicle’s original manufacturer and guarantee perfect fit and performance. Aftermarket parts are produced by third-party companies and may offer enhanced performance or cost savings, but compatibility should always be verified before purchase.
Yes, we work with a network of certified and approved workshops to ensure professional installation of your performance parts. Get in touch with us to find a recommended installer near you.
Yes, but it’s important to ensure they work together without causing performance issues. Some aftermarket parts are designed to complement OEM components, while others may require full system upgrades.
Yes, once your order is shipped, a tracking number will be emailed to you.
Orders can only be modified or canceled before they are processed. Please reach out to us as soon as possible.
If you're not completely satisfied with your purchase, you may return it within 7 days of receiving your order for a full refund, excluding delivery costs. Please note that this policy does not apply to special order parts. To qualify for a refund, items must be unused and returned in their original packaging.